Simona Maria Banu Gabriel Mihail Danciu Razvan Gabriel Boboc Horatiu Moga Cristiana Balany A novel approach for face expressions recognition. 537-541 2012 SISY https://doi.org/10.1109/SISY.2012.6339580 conf/sisy/2012 db/conf/sisy/sisy2012.html#BanuDBMB12